at org.apache.hadoop.io.compress.SnappyCodec.checkNativeCodeLoaded(SnappyCodec.java:68)

at org.apache.hadoop.io.compress.SnappyCodec.getDecompressorType(SnappyCodec.java:185)

at org.apache.hadoop.io.compress.CodecPool.getDecompressor(CodecPool.java:131)

at org.apache.hadoop.io.SequenceFile$Reader.init(SequenceFile.java:1870)

at org.apache.hadoop.io.SequenceFile$Reader.initialize(SequenceFile.java:1765)

at org.apache.hadoop.io.SequenceFile$Reader.<init>(SequenceFile.java:1714)

at org.apache.hadoop.fs.shell.Display$TextRecordInputStream.<init>(Display.java:156)

at org.apache.hadoop.fs.shell.Display$Text.getInputStream(Display.java:123)

at org.apache.hadoop.fs.shell.Display$Cat.processPath(Display.java:81)

at org.apache.hadoop.fs.shell.Command.processPaths(Command.java:306)

at org.apache.hadoop.fs.shell.Command.processPathArgument(Command.java:278)

at org.apache.hadoop.fs.shell.Command.processArgument(Command.java:260)

at org.apache.hadoop.fs.shell.Command.processArguments(Command.java:244)

at org.apache.hadoop.fs.shell.Command.processRawArguments(Command.java:190)

at org.apache.hadoop.fs.shell.Command.run(Command.java:154)

at org.apache.hadoop.fs.FsShell.run(FsShell.java:254)

at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)

at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)

at org.apache.hadoop.fs.FsShell.main(FsShell.java:304)

Resolution:

We should install snappy compression/decompression codec to resolve this error message and its corresponding .so files should be available (copied from /usr/local/bin) in $HADOOP_HOME/lib/native directory location.

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Review Comments

I have attended Siva’s Spark and Scala training. He is good in presentation skills and explaining technical concepts easily to everyone in the group. He is having excellent real time experience and provided enough use cases to understand each concepts. Duration of the course and time management is awesome. Happy that I found a right person on time to learn Spark. Thanks Siva!!!

DharmeswaranETL / Hadoop DeveloperSpark Nov 2016September 21, 2017

I really like your explanations.

Sylvain Nzeyanghadoop developer December/2016November 23, 2016

Siva , your teaching's are great and indeed very useful for the people who are interested in hadoop. Your sessions are more close to real-time and helps every one to get clear in interviews. Thanks for your support.

kalpana BhemireddyHadoop developerSpark jul/2016September 26, 2016

Course content is well structured. I like Siva's explanation of topics using slide decks & virtual machine (CDH cluster) at the same time,this will help audience to learn not only theory behind a topic but also practical aspect of it. Overall, I would recommend this course.

KumarBig Data DeveloperHadoop&Aug/2016September 26, 2016

Course content is well structured. I like Siva's explanation of topics using slide decks & virtual machine (CDH cluster) at the same time,this will help audience to learn not only theory behind a topic but also practical aspect of it. Overall, I would recommend this course.

KumarBig Data DeveloperHadoop&Aug/2016September 26, 2016

One of the best trainer is Siva Kumar, his way of communication and explantion superb,he teaches excellent as theratical and practically also,I suggest he is the Excellent trainer for Spark and Scala.

purushothamSr.Software EngineerSpark August/2016September 15, 2016

Here is 2 cents
1. Got More exercises and provide feedback. (also a final project)
2. Support (may be you need a part time person)

LexmanArchitectHadoop/SparkSeptember 13, 2016

Siva will give excellent training for Hadoop,spark. He has 4 years real time experience. His teaching is will go close to real time.

sriniwaasHadoop consultantJune 2016September 13, 2016

Excellent Training, classes were so interactive,I never got bored,Siva has Immense Knowledge in all the Hadoop tools.He explained everything so near to real-time . You can never find Hadoop course so pure in the market.

AkhilaHadoop DeveloperHadoop/sparkSeptember 13, 2016

Siva did an excellent job in explaining each topic patiently, gave many real-time examples
And he was really patient enough in answering each of our doubts,responds well in time when needed.
He has Immense knowledge in all the Hadoop/spark eco-system tools. Never felt bored in his classes he makes the classes so interactive
He has an excellent blog..got addicted to it.

AkhilaHadoop DeveloperHadoop/sparkSeptember 13, 2016

Spark and Hadoop course content is really apt for the beginners. Concept articulation gives clarity on the subject and recording are quite handy for reference. my request is to start an advance level course where it takes very close to real time feel